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update 二维码

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This commit is contained in:
sjm 2023-12-23 23:59:08 +08:00
parent f4438eb1c7
commit ac97a3b69a
2 changed files with 53 additions and 5 deletions
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4
src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java
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@ -24,6 +24,10 @@ public class QRCServiceImpl implements QRCService{
public String QR(CollectIconList collect) throws Exception {
String logoPath ="src/main/resources/static/logo/NAV.png";
String destPath = "src/main/resources/static/qr";
String savePath = "src/main/resources/static/icon";
// 将icon下载到本地并存储本地路径
String icon_url = QRCodeUtil.downloadPicture(collect.getIcon_url(),savePath);
collect.setIcon_url(icon_url);
// 通过传入collect的url_id查找相同网址图片列表
// List<CollectIconList> collectIconList = collectIconListDao.selectByUrlid(collect.getUrl_id());

54
src/main/java/com/lovenav/utils/QRCodeUtil.java
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@ -1,5 +1,6 @@
package com.lovenav.utils;
import com.alibaba.fastjson.JSON;
import com.google.zxing.*;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.BitMatrix;
@ -15,6 +16,8 @@ import java.awt.*;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;
@ -381,13 +384,54 @@ public class QRCodeUtil {
return encoder.encodeToString(data);
}
/**
* 根据图片url下载图片到本地
* @param imageUrl
* @param savePath
* @throws IOException
*/
public static String downloadPicture(String imageUrl, String savePath) throws IOException {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
BufferedInputStream in = new BufferedInputStream(connection.getInputStream());
FileOutputStream out = new FileOutputStream(new File(savePath));
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
}
// 能够返回本地地址前提
URL url2 = new URL(imageUrl);
BufferedImage image = ImageIO.read(url2);
String file = new Random().nextInt(99999999)+".jpg";
ImageIO.write(image, FORMAT_NAME, new File(savePath+"/"+file));
// 下载完成，关闭输入输出流
in.close();
out.close();
connection.disconnect();
System.out.println("图片下载成功，保存路径：" + savePath);
// 返回本地地址
return savePath+"/"+file;
}
else {
System.out.println("无法下载图片，响应码：" + responseCode);
return JSON.toJSONString("responseCode");
}
}
public static void main(String[] args) throws Exception {
String text = "https://www.baidu.com"; //这里设置自定义网站url
String logoPath ="src/main/resources/static/logo/NAV.png";
String destPath = "src/main/resources/static/qr";
String url = QRCodeUtil.encode(text, logoPath, destPath, true);
QRCodeUtil.ImageToBase64("src/main/resources/static/qr/44672405.jpg");
// String text = "https://www.baidu.com"; //这里设置自定义网站url
// String logoPath ="src/main/resources/static/logo/NAV.png";
// String destPath = "src/main/resources/static/qr";
// String url = QRCodeUtil.encode(text, logoPath, destPath, true);
// QRCodeUtil.ImageToBase64("src/main/resources/static/qr/44672405.jpg");
// System.out.println(url);
// String base64 = getBase64(url);
// System.out.println(base64);